Documentation/devtools/maemo5/sp-rich-core

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 This article documents a developer tool.
A list of available devtools is available, together with installation instructions.


Contents

[edit] Description

sp-rich-core is a package that installs an init script that pipes core dumps through a script. This script collects lots of information from the system and then saves that and the core dump data compressed into a file. The collected information includes process SMAPS data, most of /proc data, last lines from syslog, df and ifconfig output etc.

Compressing the core dumps (with lzo) actually speeds up saving them.

Use rich-core-extract (from sp-rich-core-postproc package) to extract the information from a rich core dump.

[edit] Packages

source: sp-rich-core

binary: sp-rich-core, sp-rich-core-postproc

[edit] Usage Examples

Create a small program that's sure to crash: 

- - - snip crasher.c - - -
#include <string.h>

int main()
{
   char *p = 0;
   memcpy(p, 0x00, sizeof(p));

}
- - - snap crasher.c - - -

# gcc -g -o crasher crasher.c

After copying the crasher program to your device and having installed the tool crash-reporter package (hereby fetching sp-rich-core as dependency), you can now run the program.

NOTE: The daemon /usr/bin/crash_reporter_daemon that is installed with crash-reporter package will create the /home/user/MyDocs/core-dumps directory and also on all MMC media, so if you are not seeing any files appear in /home/user/MyDocs/core-dumps/ then check the locations /media/mmc*/core-dumps/ as well. 

Nokia-N900-40-12:~# ./crasher 
Segmentation fault (core dumped)

Nokia-N900-40-12:~# cd /home/user/MyDocs/core-dumps/
Nokia-N900-40-12:/home/user/MyDocs/core-dumps# rich-core-extract crasher-7764-11-2887.rcore.lzo 

# by default this will create a directory of the same name without the suffix

Nokia-N900-40-12:/home/user/MyDocs/core-dumps# ls -l crasher-7764-11-2887
-rw-r--r--    1 user     root            9 Oct  6 12:18 cmdline
-rw-r--r--    1 user     root           74 Oct  6 12:18 component_version
-rw-r--r--    1 user     root       135168 Oct  6 12:18 coredump
-rw-r--r--    1 user     root           31 Oct  6 12:18 date
-rw-r--r--    1 user     root          646 Oct  6 12:18 df
-rw-r--r--    1 user     root          217 Oct  6 12:18 fd
-rw-r--r--    1 user     root         2665 Oct  6 12:18 ifconfig
-rw-r--r--    1 user     root         1860 Oct  6 12:18 ls_proc
-rw-r--r--    1 user     root          403 Oct  6 12:18 osso-product-info
-rw-r--r--    1 user     root           34 Oct  6 12:18 osso_software_version
-rw-r--r--    1 user     root        21495 Oct  6 12:18 packagelist
-rw-r--r--    1 user     root        78002 Oct  6 12:18 proc2csv
-rw-r--r--    1 user     root         5449 Oct  6 12:18 slabinfo
-rw-r--r--    1 user     root         3723 Oct  6 12:18 smaps

The directory will contain lots of potentially useful information in addition to the core dump file.

[edit] Links

[rich-core-dumper man page](/development/documentation/man_pages/rich-core-dumper.html)

[rich-core-extract man page](/development/documentation/man_pages/rich-core-extract.html)

[edit] See Also

crash-reporter, sp-endurance

Retrieved from "http://wiki.maemo.org/Documentation/devtools/maemo5/sp-rich-core"